ATTENTION! Nokia FBus cable: For the special DAU-4S cable (DAU for MBUS): put the RX and TX data lines from the MAX 232 IC together to the MBUS pin of the Nokia connector., as all other schemes are located on the sites of their rightful owners. We are not liable for the contents of other sites as well as the site having a circuit Nokia FBus cable: For the special DAU-4S cable (DAU for MBUS): put the RX and TX data lines from the MAX 232 IC together to the MBUS pin of the Nokia connector.. Pressing the button you must get onto a page with Nokia FBus cable: For the special DAU-4S cable (DAU for MBUS): put the RX and TX data lines from the MAX 232 IC together to the MBUS pin of the Nokia connector..